Auxiliary-air-supply means for explosive engines



Jan. 12 1926.

A. GLEASON El AL.

AUXILIARY AIR SUPPLY MEANS FOR'EXPLOSIVB ENGINES Filed Dec. 26. 1922 Patented Jan. 12, 1926,

, UNITED STATES PATENT orncs.

ANDREW G EAsoN AND CORNELIUS E. oLEAsoN, F HAMILTON, orrro; V

AUXILIARY-AIR-SUPPLY MEANS FOR EXPLOS IVE ENGINES.

Application filed December 26, 1922. Serial 1T0. 608,349.

To all whom it may concern:

Be it known that we, ANDREW GLEAsoN and CORNELIUS E. GLEAsoN, both citizens of the United States, residing at Hamilton,

5 in the county of Butler and State of Ohio,

have invented certain new and useful Improvements in Auxiliary-Air-Supply Means for Explosive Engines, of which the following is a specification.

This invention relates to explosive engines and more particularly to an auxiliary air supply means discharging into the intake manifold of the engine by: which the richin accordance with running conditions.

The invention contemplates an auxiliary air passage communicating withthe intake manifold at a point somewhat below its lateral arms, the passage having therein a medial chamber or enlargement, enclosing a filter screen, the area of which is somewhat larger than the cross area of the air passage, adapted. to not only intercept foreign material and preventing the entrance of dust and grit into the engine cylinder, but to also break up or difiuse the inflowing air currents to insure more uniform mixture with the fuel vapors. A manually adjustable regulating valve is provided in the passage for controlling the flow of air.

' The object of the invention is to simplify the structure as well as the means and mode of operation of such auxiliary air supply devices, whereby they will not only be cheapened in construction, but will be more efficient in use, positive in operation, uniform in action, easily and economically installed and unlikely to get out of repair.

.A further object of the invention is to provide in such an auxiliary air supply passage, a filter body of ample capacity that it will notv materially reduce, the capacity of the air passage.

A further object of the invention is to provide means for breaking up or difiusing the air currents whereby whilesupplying air in suifioient quantity it will not have the efiect of an air n displacing the ness of the explosive mixture may be varied necessarily the only formof embodiment of vapor fuel body, but will combine and intermingle therewith. A further object of the invention is to provide a convenient, economical and simple method of mounting such interposed filter and diffusing body.

With the above primary and other incidental objects in view as will more fully appear in the specification, the invention consists of the features of construction, the parts and combinations thereof, and the mode of operationQor their equivalents as hereinafter described and set forth in the claims.

In the accompanying'drawings, wherein is shown the preferred but obviously not the invention, Fig. 1 is aperspective view 05 of the intake manifold of a well known make of motor vehicle and the auxiliary air supply means forming the subject matter hereof appliedthereto. Fig. 2 is a longitudinal sectional view of the auxiliary air supply'device. Fig. 3 is a similarview of a modification. Fig. 4 is an elevation or face view of one of the separable members disengaged from the opposite member.

Like parts are indicated by similar char- 76 actors of reference throughout .the several views.

As illustrated in the drawings, 1 is the intake manifold of a motor vehicle engine, having the main conduit or supply conduitBO 2 and. laterally disposed distributing arms 3.. The auxiliary air supply member forming the subject matter hereof communicates with the main conduit 2 of the manifold somewhat below the level of the distributing arms 3. While the invention may be em bodied in a .varietyof forms without material change of construction or operation, the simple formillustrated comprises two disc-like head members 4 and. 5 connected .0 one to the other faceto face. Extending through the divided head members is an air supply passage 6; One of the head members 4 is provided with a pro ect1ng boss or nipple 7 screw threaded for en age- 05 ment in the 4051 1. 6 intake mamfold,

with which the passage communicates. The inner or. adjacent faces of the divided head members 4 and 5 are counter-bored or recessed as at 8 to afford a medial enlarge ment of the passage 6 or a ch amber in which is located a foraminous diaphragm 9, extending transversely in relation to the passage 6 and through which the inflowing current of air must pass. The diffusing and filter diaphragm 9 may be of any suitable porous material. However, in practice fine mesh metallic cloth or screen has been successfully used. In instances wherein the mesh of the screen cloth is not sufficiently close, such screen cloth or filter may be employed of double thickness. However, other materials having the property of permitting the passage of air, but intercepting and arresting the entrance of dust and dirt, and of diffusing or breaking up the air current and avoiding a blast effect may be employed. By reason of the medial enlargement or chamber 8, the area of the diaphragm 9 may be sufficiently greater than the cross area of the passage 6 to permit a flow of air when necessary to the maximum capacity of the passage. In practice the capacity of the filter or diaphragm is preferably somewhat greater than the maximum capacity of the passage 6 in order to compensate for the collection of dust and foreign material which to some extent obstructs the pores or openings of the diaphragm. It is quite obvious that an open passage would permit large quantities of dust and grit to be sucked into the engine cylinder where the accumulation would not only clog the en gine parts, but would also increase the wear. This is overcome by providing the intercepting diaphragm which in addition to arresting such particles of foreign material serves to break up the air currents and obviate its blast tendency, thus insuring more uniform intermixture with the fuel vapors.

At the outer end of the passage 6 there is mounted upon the divided head member 5 a regulating valve by which the quantity of air entering the manifold may :be regulated. In the present instance, this regulator is shown as a simple and ordinary form of rotary cut-oft valve 10. The valve is oper atively controlled from the dash or cowl of the vehicle. by means of a wire or link 11, which enables the driver to adjust the regulating valve .to varying conditions or requirements.

In the event that the air passage 6 is of comparatively large diameter, the interme diate enlargement or chamber 8 may be omitted as is shown in Fig. 3.

From the above description it will be apparent that there is thus provided a device of the character described possessing the particular features of advantage before lenumerated as desirable,but which obviously is susceptible of modification in its form, proportions, detail construction and arrangement of parts without departing from the principle involved or sacrificing any of its advantages.

While in order to comply with the statute the invention has been described in language more or less specific as to structural features, it is to be understood that the invention is not limited to the specific details shown, but that the means and construction herein disclosed comprises the preferred form of several modes of putting the invention into effect and the invention is therefore claimed in any of its forms or modifications within the legitimate and valid scope of the appended claims.

Having thus described my invention, I claim:

1. The combination with an, intake manifold of an explosive engine, of auxiliary air supply means therefor including a divided head consisting of two flat discs abutting laterally one on the other and having an air passage therethrough, one member of the divided head having a threaded nipple through which the passage extends, for engagement with the manifold, the other member of thedivi-ded head having a regulating valve connected. with the passage therethrough for controlling the flow of air, a wire screen diaphragm clamped between the members of the divided head and studs extending transversely thru the discs forming the members of the divided head by which they are connected one with the other the 7 passage way being enlarged on either side of the wire screen.

2. The combination with an intake manifold for an explosive engine, of auxiliary air supply means including a divided head comprising two flat discs abutting laterally one on the otherand having a passage the-rethrough, means for connecting the passage through the divided head with the intake manifold, the adjacent faces of the divided head being counter bored, to afford an enlarged chamber, a section of wirescreen clamped between the coi' nter-bored faces of the divided head members and studs extending thru registering holes in the respective discs by which they are interconnected one with the other, and a regulating valve connected with the outer end of the passage.

3. An auxiliary air intake for explosive engines, comprising two discs fixedly connected one to the other and provided with central registering passages, the adjacent faces of the discs being vcounterbored to afford an interior chamber with which the central registering passages of the respective discs communicate and a foraminous diaphragm dividing said chamber with-its margins clamped between the discs beyond the counterbores thereof, the central passage of one disc communicating with the of one disc being for communication with intake manifold of an engine, the central the intake manifold of an explosive engine, passage of the other disc having communithe passage of the other disc communicating cation with atmosphere. with atmosphere, a valve controlling the 4. An auxiliary air intake for explosive last mentioned passage. ll engines comprising two discs having flat In testimony whereof, we have hereunto faces abutting one upon the other, a filter set our hands this 16 day of December screen clamped between the abutting flat A. D. 1922. faces of the discs, registering central pas- ANDREW GLEASON. l sages thru the respectlve discs, the passage CORNELIUS E. GLEASON. 

